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The Prothane rear coil spring isolator in black fits 1979–2004 Ford Mustang rear suspension applications and serves as a replacement isolator to reduce noise and cushion the spring-to-mount interface. Specified for Mustang rear use across those years, it’s intended for suspension refresh jobs or to correct worn or hardened isolators without altering spring geometry.
Prothane 79-04 Ford Mustang Rear Coil Spring Isolator - Black
